Implement parseLTSVLog roughly
Allow to define value convertion rules as an arguments
Use Function#bind instead of returning function
Implement createLogTable

HTMLTableRowElement doesn't have a helper function to add `th` tag like
`insertCell` (which is for `td`).
Use double quotes instead of single quotes

to comform to test.js
Rename _parseLTSVLog -> parseLTSVLogWithConversion
Implement JS-3
Fix id (table-container -> access-log-table-container)

following to README
Implement LogTable for JS-4
Format
Implement parseQuery, queryToFunction
Implement user interface
Implement Log
Implement Parser
Rename perser.t -> parser.t
Implement LogCounter
Use Class::Accessor::Lite in Log

via cpanfile
Support sample_data/log.ltsv

Records in sample_data/log.ltsv have `method` and `path` field
instead of `req` field.
Implement LogCounter#group_by
Add bin/group_by_count.pl